Cutting machine



A. J. FAU'SEK ET L June 14, 1932.

CUTTING HACHINE Filed July 24, 1950 2 Sheets-Sheet 1 A frag/vf v June 14, 1932. A. J. .FAusEK ETAL 1,862,848

CUTTING MACHINE Filed July 24, 1930 2 sheets-sheex 2 j //v vE/vraes AJ HIL/55K A /E'FA us5/f 3y Patented June 14, 1932 UNITED STATES.

PATENT orme ARTHUR :LrAUsEK AND IRWING F. FAUsEK,Y oF CLAYTON, ivrrssoum'l Y.

CUTTING MACHINE Application med July 24,

|This invention relates general-ly to metal cutting machines and `more specifically toa cutting machine of the type adapted for use in guiding gas-burning cutting torches during cutting operations thereof, the predominant object of the invention being to construct a machine of this type which is of such improved construction and arrangement that very eflicient results are obtained in the use il? thereof. A Y Figure 1 is a plan view of our improved cutting machine.

Figure 2 is a fragmentary vertical section through the machine illustrated in Figure'l. Figure 3 is a cross-section of the machine illustrated in Figures 1 and 2. Figure 4 is a cross-section on line 4-4 of Figure 1.

Figure 5 is a view similar to Figure 2 but *l1- showing the fragment of the machine illustratcd in el-evation..

In the drawings, wherein is shown for the purpose of illust-ration, merely, one embodi-k ment of the invention, A designates our im# proved cutting machine generally. The cutting machine A includes ay pair of supporting elements 1 and 2 which are located at opposite ends of the machine, these supporting ele- Y ments being shaped as shown clearly in Fi gf ure 4 and being each provided with a pair of horizontally alined' apertures 3. Extended longitudinally of the machine A from the sup; porting element 1 to the supporting element 2 is a pair of guiding members 4 and 5, said guiding members being substantially square in'cross section and being arranged onedge as shown clearly in Figures 3 and 4; lthat is to say, the arrangement of the guiding members is such that the diagonal diameters there! of are in upright and transverse planes. At their opposite ends the guiding members are provided with reduced portions 6 which are extended through the apertures 3 formed in the oppositely disposed supporting elements, the shoulders 7 at the point of junction be- 1930. seriai No. 470,395.

tween the guiding members proper and the reduced end portions thereof serving to .maintain the spaced relation of said supporting elements. The outer end portions of the reduced portions 6 of the guiding members are screwthreaded and nuts 8 are screwed on said reduced end portions in a manner to securely fix the guiding members to the supporting elements. The guiding members are properly positioned and maintained in their proper positions by plates `5a which are located at the supporting elements 1 and 2, said plates be-V.V

ing interposed between the shoulders 7 on the guiding members 4 and 5 and the supporting elements 1 and 2 and being provided with eX-v tensions 5b which are inclined andi contact with faces of said guiding members.

Extended longitudinally of the machine A is a screw 9 which is provided with reduced end portions 10 extended through apertures formed through the oppositely disposed supporting elements 1 and 2. Atthe extreme outer ends of the reduced opposite end portions of the screw 9 a pair 0f hand operating wheels 11 are fiXedly secured to said reduced end portions whereby the screw may be conveniently subjected to rotary movement in thev bearings provided by the apertures in the supporting elements 1 and 2.

C'designates a movable carriage which includes a substantially horizontal plate 12. The plate 12 is provided with a downward eX- tended lug 13 which is located at One side thereof, and a similar lug 14 which is located at the opposite side of saidV plate (Fig. 2). Supported by the lug 13 is a horizontal trun` nion 15 which rotatably supports a roller 16.. The roller 16 is provided with a substantially V-shaped, annular groove which receives the upper portion of the guiding member 4, and .said roller 16 is confined between a v head portion 17 at the inner end of the trunnion 15 and a nut 18 screwed on the outer end of said trunnion so that said roller is prevented from moving longitudinally of the trunnion.

Extended through an opening Jformed through the lug 14 is a bolt 18. This bolt rotatably supports a roller 19 having a V-shaped, annular groove which receives the upper portion or" the guiding member 4, and, as in the case of the roller 16, said roller 19 is mounted on said bolt so that it is incapable of substantial movement longitudinally thereof. Pivotally supported at one of its ends by the bolt 18 is an arm 20 (Figure 2), said arm being extended approximately parallel with respect to the screw 9 and being spaced from said screw in an upward direction. The' arm 2O is provided' with a down-.

wardly extended partial nut which is provided with a .semicylindrical opening through which the screw 9 passes, said semicylindrical opening beingY provided with arcuate extensions 22 which are extended into the depression between portions of the thread of the screw. 23 designates an .ex-

pansible coil .spring which is seated at its op-. posite ends in cavities formed in the plate 12 and arin 2O respectively, and said coil spring tends to force the tree end ot the arm 2O downwardly so as to maintain the nut 21 in engagement with the screw 9.

Projected downwardly from the plate- 12 of the carriage C is a pair of oppositely disposed arms 24 and 25. which are connected together at their lower ends by a plate 25- circumferential groove which receives the up" per portion ot the guiding member 5, and said roller is capable of movement longitudinally of the trunnion 26. rEhe arms 24 and 25 are located in a vertical plane which is intermediate the vertical planes in which the lugs 13 and 14 are located and, therefore, the

roller 27 which is supported by the arm24 is disposed in like relation with respect to the rollers 16 and 19 supported by said lugs- 13 and 14. ln other words, the upper rollers 16, 19, and 27. are disposed in horizontal triangular arrangement whereby three pointsupport for the carriage is obtained.

Extended downwardly from the plate 25 isa pin 28 which is screw-threaded atits lower end. This pin extends through an aperture 29 formed through the upper portion of a bar e0" which extends transversely of the machine as illustrated in Figure 2 and said aperture is provided with an enlarged low-r portion 8.-.. Screwed on the lower screwtlircaded end of thek pin 28 is a wing nut 32 and arranged on the pin 28 immediately above said wing nut is a washer interposed bctween the washer' 33 and the top wall oi" the enlarged portion 31 fot the aperture 29 is a coil spring 34. The washer 33 is of slightly less diameter than the enlarged portion of the aperture 29, hence, the bar is yieldingly attached to the pin 28.

35 designates a pair of arms which are extended outwardly in opposite directions from the bar 30 at one end thereof. These arms support a pair of rollers 36 and 37 which are provided with V-shaped circumferential grooves and are rotatably supported on pins 38 extended outwardly from said arms, said rollers being capable of movement longitudinal-ly of their supporting pins. The upper portions of the tl -shaped circumferential grooves of the rollers 36 and 37 receive the lower edge of the guiding member 4 as shown in Figures 2 and 3. Rotatably supported on a pin 39 which extends outwardly from the end of the bar 30 opposite to the end thereof at which the rollers 36 and 37 are located is a roller 40, said roller being* provided with a'circumferential V-shaped groove which receives the lower edge portion of the guiding member 5 and being capable ot'movement longitudinally of the pin 39 by which it is supported. As is the case with the upper rollers 16, 19, and 27, the lower rollers 36, 37, and 40 are disposed in horizontal., triangular arrangement whereby three'point contact between the lower rollers and 'the guiding mem-- bers is` obtained. v

Supported upon the top face of the plate 12 of the carriage C is asupportingmember 4l whichincludes a pair of spaced, opstanding arms 42. The lower portion, of the supporting member 41 is in the form of a substantiall-y circular. plate 43 which is rotatably connected to the plate 12 by a centrally located pin 44. The pin Y 44 is screwthreaded` at its lower portion andthis screwthreaded portion is screwed into a screwthreaded opening in the plate 12 (Figure 2)., and at itsl upper end the pin 44 is associated with an operating wheel 45, the lower Jface of which contacts with the top face of the plate 43. The operating wheel 45 may. be' rotated reversely to move the lower tace thereof out of contact with the plate 43 whereupon the supporting member 41 may be rotated about the pin -i-'t to any desired adjustment, and when the dcsiredv adjustment has beenv attained the operating' wheel may be screwed downwardly to clamp the supporting member in position. Toassist in the proper adjustment ofthe sugpoi'ting member the edge ot the plate 4&3 thereof is provided with an indicating marlir 46 (Figure'3) and the top face of the plate 12 is provided'with graduations47 (Figure 1l with. respect to which said indicating marl: 4G is moved when the supporting member is rotated about the pinf44.

Formed in the upstandingl arms 42 ot the supporting member 41 are pairs of horizontally alined apertures through which a pair of rods 48 is extended. These rods 48 are or other suitable fastening devices 64.

. split collar embraces a cutting torch T of suitarranged in horizontal alinement and at the forward ends thereof are joined by a bar 49 which is securely fixed tothe rodsby nuts 50 screwed onlscrewthreaded reduced end portions of said rods. The opposite ends of the screw is an operating handle 57 whichf facilitates rotation of the screw.

58 designates a head which is provided with an opening formed therethrough through which the upstanding rod v54 extends, and 59 designates a set sc rew which rigidly connects said head to said rod. l The head is prof vided with a second opening 60 which is disposed at an approximate right angle to the direction of extension of the opening 59. and a rod 61 is extended through this last men tioned opening, said rod being fixed in position by a set screw 61. At one endY thereof the rod 61 just referred to its provided with a split collar comprised of arcuate elements 62 and 63 which are secured together by bolts able construction in a manner to cause said torch to be rigidly fixed to the rod 61.

The cutting torch T is. supplied with gas by a plurality of flexible conductors 64, 65, and 66, which are connected to the tail piece of the torch as shown in Figures 1 and 3, and valves 67 are arranged at said tail piece for controlling the flow of gas to the torchfrom said conductors. Mounted on'a plate 68 supported by the upstanding arms 42 ofthe supporting member 4l is a plurality of valves 69, 70, and 71. rlfhese valves are of ordinary construction and the flexible conductors 64, 65, and 66 are connected thereto; that is to say, the liexible conductor 64 is connected .to thc valve 69, the flexible conductor 65 `is conH nected to the valve 70, and the flexible/.conductor 66 is connected to the valve-7l. valve 71is connected by al conductor 72 to a fuel gas supply, while the valves and 69 are connected by conductors 73 and 74 to an oxygen supply. control the passage of acetylene to the torch and of oxygen to preheating iiames of said torch, are simultaneously operable by single operating handle 75 pivoted at 76l to ka fixed part of the valve structure, while thevalve 71 which controls oxygen leading to the cutting jet of the torchis operableby an independent operating handle 77 pivotedpat 78,

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The valves v69 and 7 O which and each of said operating handles is provided with suitable means 79 for maintaining same in a depressed position.

To prevent the flexible conductors 64, 65, and 66 from becoming tangled during operation of the machine, we provide an open ring 8O (Fig-ure@ through which saidflexible conductors are extended. This ring is provided with a downwardly extended tubular extension 81 which is arranged in telescoping arrangement with the upper portion of the rod 54 and is provided with a set screw 82 which provides for fixing said open ring at various elevations It is essential in using our improvedcutting machine that themachine be in a substantially level position and, therefore, we provide the supporting. elements 1 and 2 with auxiliary feet 83 which are adjustable vertically.

nectors 85 and these wedges may be introduced beneath the feet of the supporting ele ments 1 and 2 to assist in leveling the machine. p y c Y n the use of ourfimproved cutting machine, said machine is supported on the metal plate or other element to be cut, this plate having been marked to indicate the lines on which same is to be cut. The torch T is then arranged at the proper elevation and is fixed vat such elevation by tightening the bolts 64 of the` split collar whichembraces said torch, after which the torch may be moved to the proper transverse point so as to'bring it above the line to be cut by rotating the screw 55 associated with the supportingrmember 41. When the torch has Vbeen properly set as described and has been located at the starting point of the cut thev screw 9 will be ro tated with the result that the carriage C will be caused to travel longitudinally of said screw andas the torch T moves with the carriage said torch which, of course, has been previously placed in operation7 will cut the element being operated on along the line it travels. When it is desired to cut the element being operated on along an arc of a circle the supporting member 41 may be rotated about the pin 44 and because of the presence of the indicating mark 46 and the graduations 47 accurate cutting of this sort may be accomplished. VlVhen the carriage has reached the endof a. cutting operation it is not necessary to return sanieby reversing vthe direction of rotation of the screw 9. In-

stead the carriage may be quickly returned to thelstarting position by elevating the outer end of thearm 20 against the action of the `coil spring 28 so as to free the nut 21 from the screw 9 whereby free` movement of the carriage with respect to the screw is possibile. An important feature of the invention resides in the fact that the upper rollers 16 and 19 are the only rollers which are held against `We also attach wedges 84 to said supporting elements by means of flexible con-` point contact is obtain-ed between the carriage C and the guiding members el and 5 the carriage is more likely to be maintained in a level position. Finally our improv-ed cutting machine includes valves for controlling the passage ot gas to the torch which are located on the carriage of the machine. This is a decided advantage inasmuch as the valves are located inthe most convenient position, and furthermore as the valves on the carriage ot the machine are auxiliary to the valves 67 at the tail ol the torch, the last mentioned valves may be set to obtain a cutting flame having the desired characteristics and this setting ot said valves need not be disturbed when use oit the torch is temporarily discontinued, the llame the torch being` controlled entirely by operation of the auxiliary valves.

Due to the fact that the torch T is supported by the r-od Gl which is capable of axial rotation within the opening GO in the head 58, the torch may be locked, by the set screw 61', in a position where it is extended at an angle to the true vertical for bevel cutting` le claim:

l. A cutting machine comprising supporting means, guiding members supported by said supporting means, a traveling carriage supported by and movable along said guiding members, means associated with said carriage for engaging cutting torch, screwthreac ed means for impart-ing movement to apart associated with said carriage, and a manually ieleasable element associated withv -said carriage and movable into and out oi cooperative engagement with said screwthreaded means.

tin Li cutting machine comprising supporting means, guiding members supported bv said suiporting means a traveling car- .i c a :a

riage supported by and movable along said guiding members, means associated with said carriage for engaging a cutting torch, screwthreaded means for imparting movement to fa part associated with said carriage, and a manually releasable element associated with said carriage and movable into and out of cooperative engagement with sait screwthreaded means, the last mentioned means comprising a pivoted arm, and a pai-tial nut on said pivoted arm adapted to engage said screwtlireaded means.

3. A cutting machine comprising supporting means, guiding members supported by said supporting means, a traveling carriage,

isere-,eser- Ineans associatedI with said carriage for engaging a cutting torch, and rollers associated with said carriage and movable along said guiding members, said rollers being so located as to provide three` point contact between the carriage and the guiding members f-l. A cutting machine comprising supporting means, guiding members supporte by said suppo-rting means, a traveling carriage, means associated with said carriage for engaging a cutting torch., and rollers associated with said carriage and movable along said guidng members, said rollers being arranged in horizont-al triangular formation so as to provide three point contact between the carriage and the guiding members.

5. A cutting machine comprising supporting means, guiding members supported by said supportingmeans, said guiding members comprising bars rectangular in cross section arranged with their diagonal diameters eX- tended in vertical and horizontal planes, a traveling carriage, means associated with said carriage for engagingV a cutting torch, and rollers associated with said carriage and movable along said guiding members, said rollers being provided with annular grooves shaped to receive edge portions ott said guiding members and being so located as to provide three point contact between said cai'- riage and said guiding members.

(i. A cutting machine comprising supporting means, guiding members supported by said supporting means, said guiding members comprising bars rectangular in cross section arranged with their diagonal diameters extended in vertical and horizontal planes, a traveling carriage, means associted with said carriage for engaging a cutting torch, and rollers associated with said carriage and movable along said guiding members, said rollers being provided with annular V-shaped grooves to receive edge port-ions of saidl guiding members and being so located asto provide three point contact between saidn carriage and said guiding members.

7. A cutting machine comprising supporting means, guiding members supported by said supporting means, a traveling carriage, means associated with said carriage for engaging a cuttfng torch, upper rollers associated with said carriage and movable along the upper portion of said guiding1 member, and lower rollers associated with said carriage and movablealong the lower portion of said guiding members.

8. A cutting machine comprising supporting means, guiding members supported by said supporting means, a traveling carriage, means associated with said carriage for engaging a cuttingv torch, upper rollers associated with said carriage and movable along the upper portion of said guiding member, lower rollers associated with said carriage sei and movable along thelower portion of said guiding members, and means for yieldingly connecting said lower rollers to said carriage. Y v

9. A cutting machine comprising supporting means, guiding members supported by said supporting means, a traveling carriage,

means associated with said carriage for engaging a cutting torch, upper rollers associated with said carriage and movable along the upper portion of said guiding member', lower rollers associated with said carriage and movable along the lower portion of said guiding members, and means including a spring for yieldingly connecting said'lower rollers to said carriage.

10. A cutting machine comprising supporting means, guiding members supported by said supporting means, a traveling carriage, means associated with said traveling carriage for engaging a cutting torch, and rollers associated `with, said carriage, said rollers being provided with circumferential grooves which receive said guiding members and one of said rollers being so supported as to be capable only of rotary movement while others orn said rollers are mounted so as to be capable of rotary movement and movement longitudinally of their aXes.

11. A cutting machine comprising supporting means, guiding members supported by said supporting means, a traveling carriage,vmeans associated with said traveling carriage for engaging a cutting torch, and rollers associated with said carriage, said rollers being provided with circumferential grooves which receive said guiding members and being so located as to provide three point contact between said carriage and said guiding members, one o said rollers being so supported as to be capable only of rotary movement while others of said rollers are mounted so as to be capable of rotary movement and movement longitudinally or" their aXes.

12. A cutting machine comprising sup porting means, guiding members supported by said supporting means, a traveling car riage, means associated with 'said traveling carriage for engaging a cutting torch, and rollers associated with said carriage, said rollers including a set of upper rollers movable along the upper portions of said guiding members and a set of lower rollers movable along the lower portions of said guiding members, said rollers being provided with circumferential grooves which receive porl tions of said guiding members and certain of said rollers being so supported as to be capable only of rotary movement while others of said rollers are mounted so as to be capable of rotary movement and movement` longitudinally of their axes, the rollers of each set of rollers being so located as to provide three point contact between said carriage and said guiding members.

carriage for enga-ging acutting torch, rollers associated with said carriage, saidrollers 1ncluding a set of upper rollers movable along the upper portionsof said guiding members and a set of lower rollers movable along the Vlower portions ofsaidguiding members, said rollers being provided with circumferentialy grooves whichreceive portions of said guiding members and certain of said rollers being so supported as to be capable only of rotary movement while others of said rollers are mounted so as to be capable of rotary movement and movement longitudinally of their axes, the rollers of each set of rollers being so located as to provide three point contact between said carriage and said guiding members, and yieldable Ameans oryieldably con necting the lower set of rollers to the carriage.

14:. A cutting machine comprising supporting means, guiding members supported by said supportingA means, a traveling carriage supported by and movable along said guiding members, means rotatably mounted on said carriage for supporting a cutting` torch, screw-threaded means Jfor impartingporting means, guiding members supported by said supporting means, a traveling carriage supported by and movable along said guiding members, means mounted on said carriage for supporting a cutting torch, the last mentioned means including traveling means for moving said cutting torch in a straight line, screw-threaded means for imparting movement to a part associated with said carriage, and a manually releasable element associated with said carriage and movable into and out of cooperative engagement with said screw-threaded means.

16. A cutting machine `comprising supporting means, guiding members support-ed by said supporting means, a traveling carriage supported by and movable along said guiding members, means rotatably mounted on said carriage for supporting a cutting torch, the lastv mentioned means including traveling means for moving said cuttingtorch in a straight line, screw-threaded means for imparting movement toapart associated with said carriage, anda manually' releasable element associated with said carriage and movable into and out of 'cooperative engagement with said screw-threaded means.

17. A cuttingV machine comprising supporting means, guiding members supported by said supporting means,'a traveling car riage supported by and movable along said guiding members,v means associated With said carriage for engaging al cutting torch7 screwthreaded means for imparting movement to said carriage, a single valve for controlling passage of both fuel gas and preheating oxygen to the torch, and a second Valve for con trolling passa-ge of oxygen to the cutting jet of the torch.

In testimony whereof We have hereunto set our hands.

ARTHUR J. FAUSEK. RWING F. FAUSEK.. 

